KEPOET OF THE BTATB BOTANIST. 89 



scabro-pubescent, densely hairy on the sheaths, light green; 

 staminate spikes 1-2, cjlindrical, ^'-H' long, on a slender 

 peduncle l'-2' in length, the lowest ^' long and sessile; pistillate 

 spikes 1-3, distant or remote, the highest sessile, the lowest on 

 an included stalk ^'-1' ia length, erect, subdensely flowered, 

 i'-\y long; bracts leafy, the lowest sheathing, surpassing the 

 culm ; perigynia ovate-oblong or lanceolate, prominently nerved, 

 turgid, downy-pubescent, 3 " long, tapering into a long slender 

 bifurcate beak, longer than the ovate rough-awned scale. 



Introduced. Rare or local. Cayuga county. June, July. 



It is separated from the next by its light green foliage and 

 downy sheaths, and by its fewer, softer fertile spikes. 



108. Carex trichocarpa Muhl. 



Stems 2°-3' high, rigidly erect, acutely angled, smooth or his- 

 pid on the angles above ; leaves stiff, rough, 2"~3" wide, longer 

 than the culm ; staminate spikes 2-5, linear or subclavate, y-iy 

 long, the terminal short-stalked, rarely with a few fertile flowers 

 at the base or apex, the lowest, which is frequently the longest, 

 with a bristleform bract, each tapering to an acute apex ; pistil- 

 late spikes 2-4, distant, short-peduncled, or the highest subsessile, 

 erect, cylindrical, closely flowered above, somewhat loosely at the 

 base, l'-2i' long or more ; bracts leafy, sheathless, longer than 

 the culm ; perigynia oblong-ovate, prominently nerved, hispidly 

 pubescent, gradually tapering into a long bifurcate beak, the 

 teeth sharp and spreading; scale ovate-lanceolate, thin, brown 

 with scarious margins, shorter than the perigynium ; achenium 

 obovate, apiculate, smooth. 



Marshes and wet places. Common. June, July. 



Prominently marked by its 2-5 narrow acute sessile sterile 

 spikes, and its rough-hairy, deeply cleft perigynia. 



Var. imberbis Gray. A. reduced form with rough sheaths, 

 smooth perigynia and mostly longer scales. 



109. Carex aristata -R. -Bn 



Stems 1°-2|^° high, erect, stout, acutely angled, smooth below 



the spikes ; leaves longer than the culm, l|^"-3" wide, smooth, 



rough on the margins, stiff, yellowish green ; staminate spikes 



1-4, club-shaped, the uppermost on a stalk ^'-1' long ; pistillate 



12 



